The relative contributions of radial and laminar optic flow to the perception of linear self-motion. Harris, L. R., Herpers, R., Jenkin, M., Allison, R. S., Jenkin, H., Kapralos, B., Scherfgen, D., & Felsner, S. Journal of Vision, 09, 2012.
The relative contributions of radial and laminar optic flow to the perception of linear self-motion [link]Paper  The relative contributions of radial and laminar optic flow to the perception of linear self-motion [link]-1  The relative contributions of radial and laminar optic flow to the perception of linear self-motion [link]-2  doi  abstract   bibtex   
When illusory self-motion is induced in a stationary observer by optic flow, the perceived distance traveled is generally overestimated relative to the distance of a remembered target (Redlick, Harris, and Jenkin, 2001): subjects feel they have gone further than the simulated distance and indicate that they have arrived at a target's previously seen location too early. In this article we assess how the radial and laminar components of translational optic flow contribute to the perceived distance traveled. Subjects monocularly viewed a target presented in a virtual hallway wallpapered with stripes that periodically changed color to prevent tracking. The target was then extinguished and the visible area of the hallway shrunk to an oval region 40 deg(h) x 24 deg(v). Subjects either continued to look centrally or shifted their gaze eccentrically, thus varying the relative amounts of radial and laminar flow visible. They were then presented with visual motion compatible with moving down the hallway toward the target and pressed a button when they perceived that they had reached the target's remembered position. Data were modeled by the output of a leaky spatial integrator (Lappe, Jenkin, and Harris, 2007). The sensory gain varied systematically with viewing eccentricity while the leak constant was independent of viewing eccentricity. Results were modeled as the linear sum of separate mechanisms sensitive to radial and laminar optic flow. Results are compatible with independent channels for processing the radial and laminar flow components of optic flow that add linearly to produce large but predictable errors in perceived distance traveled.
@article{harris_relative_2012,
	abstract = {When illusory self-motion is induced in a stationary observer by optic flow, the perceived distance traveled is generally overestimated relative to the distance of a remembered target (Redlick, Harris, and Jenkin, 2001): subjects feel they have gone further than the simulated distance and indicate that they have arrived at a target's previously seen location too early. In this article we assess how the radial and laminar components of translational optic flow contribute to the perceived distance traveled. Subjects monocularly viewed a target presented in a virtual hallway wallpapered with stripes that periodically changed color to prevent tracking. The target was then extinguished and the visible area of the hallway shrunk to an oval region 40 deg(h) x 24 deg(v). Subjects either continued to look centrally or shifted their gaze eccentrically, thus varying the relative amounts of radial and laminar flow visible. They were then presented with visual motion compatible with moving down the hallway toward the target and pressed a button when they perceived that they had reached the target's remembered position. Data were modeled by the output of a leaky spatial integrator (Lappe, Jenkin, and Harris, 2007). The sensory gain varied systematically with viewing eccentricity while the leak constant was independent of viewing eccentricity. Results were modeled as the linear sum of separate mechanisms sensitive to radial and laminar optic flow. Results are compatible with independent channels for processing the radial and laminar flow components of optic flow that add linearly to produce large but predictable errors in perceived distance traveled.},
	author = {Harris, Laurence R. and Herpers, Rainer and Jenkin, Michael and Allison, Robert S. and Jenkin, Heather and Kapralos, Bill and Scherfgen, David and Felsner, Sandra},
	date-added = {2013-02-07 01:40:26 +0000},
	date-modified = {2013-02-07 01:40:26 +0000},
	doi = {10.1167/12.10.7},
	file = {Full Text PDF:/Users/robertallison/Library/Application Support/Firefox/Profiles/thhmbgl4.default/zotero/storage/VNA249TC/Harris et al. - 2012 - The relative contributions of radial and laminar o.pdf:application/pdf;Snapshot:/Users/robertallison/Library/Application Support/Firefox/Profiles/thhmbgl4.default/zotero/storage/PCG2IGFI/7.html:text/html},
	issn = {1534-7362},
	journal = {Journal of Vision},
	keywords = {Optic flow & Self Motion (also Locomotion & Aviation)},
	language = {en},
	month = 09,
	number = {10},
	title = {The relative contributions of radial and laminar optic flow to the perception of linear self-motion},
	url = {http://www.journalofvision.org/content/12/10/7},
	url-1 = {http://www.journalofvision.org/content/12/10/7},
	url-2 = {http://dx.doi.org/10.1167/12.10.7},
	volume = {12},
	year = {2012},
	url-1 = {http://www.journalofvision.org/content/12/10/7},
	url-2 = {https://doi.org/10.1167/12.10.7}}
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